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More power out of a 360?

 
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Old 08-09-2011, 12:02 AM
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More power out of a 360?

Ok well i have a rebuilt 360 that has been bored .030". I recently replaced the intake with a 4brl from a 390 and added a 600 cfm edlebrock. It has headers and dual exhaust.

What else can i do to get more power out of the truck? Has anyone put a cam in a 360 or is it just worthless?

Truck is for mud bogging and currently running 38" tires with 5.13 gears.

Thanks
 
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Old 08-09-2011, 12:26 AM
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Worthless, due to the low compression and down the hole piston in the 360. A longer duration cam on top of low compression isn't a good combo.

Did you change your timing set to a pre-smogger with straight up timing?

That, the 4bbl and headers is as far as you should go on a 360. Those will wake it up quite a bit. Further performance comes from a 390 crank and rods, and proper pistons, to raise compression and restore some quench to the combustion chamber. Then a cam will be on the list.

All this based on dozens of posts about the 360 here on fte.
 
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Old 08-09-2011, 12:47 AM
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Agreed^^

Headers, a 4bbl intake and carb, and a straight up timing set is as far as the 360 goes. There's just no practical way to raise CR. The next step is a crank, rod, and possibly piston swap. You can make a 396/416/445 (+.030 overbore) depending on if you use a 390, 428 or stroker crank and rods. The stroker is quite a step up in price. Both the 390 and 410 can be done relatively cheaply.
 
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Old 08-10-2011, 01:22 AM
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When you rebuilt it, you should have gotten some 9.5 to 1 pistons, then you would have a better chance at power, or the real right way would have been to put a 390 crank and rods in it. Those 360 rods are weak.
 
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Old 08-17-2011, 06:18 PM
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Keith Black/KB Pistons 3194H-030 - Silv-O-Lite Hypereutectic Pistons - Overview - SummitRacing.com thats what i did with my 352 except I bought pistons that were 4.050, because i bored it .050 over. compression height is better on those pistons, and I had my rods reconditioned, But if you are going to pull it all apart for pistons you might as well just do what bear 45/70 said and just get a crank out of a 390 it will be cheaper, plus you will have a 390. Thats what im wishing I would have done. Now I have a 352 with 9.3:1 compression (well technically its a 360 since i bored it .050 over) It is kinda unique I guess aka dumb. lol.
 
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Old 08-18-2011, 05:32 PM
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Originally Posted by Justins68ford View Post
Keith Black/KB Pistons 3194H-030 - Silv-O-Lite Hypereutectic Pistons - Overview - SummitRacing.com thats what i did with my 352 except I bought pistons that were 4.050, because i bored it .050 over. compression height is better on those pistons, and I had my rods reconditioned, But if you are going to pull it all apart for pistons you might as well just do what bear 45/70 said and just get a crank out of a 390 it will be cheaper, plus you will have a 390. Thats what im wishing I would have done. Now I have a 352 with 9.3:1 compression (well technically its a 360 since i bored it .050 over) It is kinda unique I guess aka dumb. lol.
If you do this as stated above make sure you get 390 rods to go with the crank. If you watch around on ebay you can get a decent deal with a already ground crank. Now your taking a chance that the shop that did the work sucked but sometimes its worth the risk if you get it cheap enough.
 
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Old 08-21-2011, 05:58 PM
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Originally Posted by Justins68ford View Post
Keith Black/KB Pistons 3194H-030 - Silv-O-Lite Hypereutectic Pistons - Overview - SummitRacing.com thats what i did with my 352 except I bought pistons that were 4.050, because i bored it .050 over. compression height is better on those pistons, and I had my rods reconditioned, But if you are going to pull it all apart for pistons you might as well just do what bear 45/70 said and just get a crank out of a 390 it will be cheaper, plus you will have a 390. Thats what im wishing I would have done. Now I have a 352 with 9.3:1 compression (well technically its a 360 since i bored it .050 over) It is kinda unique I guess aka dumb. lol.
Those are 7.2 compression dished truck pistons. How are you figuring you got 9.3?

http://kb-silvolite.com/silv-o-lite/...tails&S_id=660
 
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Old 08-21-2011, 06:44 PM
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Originally Posted by draggin the line View Post
Those are 7.2 compression dished truck pistons. How are you figuring you got 9.3?

Silv-O-Lite - Better Pistons Since 1922
OK I looked up the rod length on the 361 and it's the same as the 390, so I see where you got that figure, although I didn't actually do the math. Your pistons should be slightly above deck, which is fine with standard .041" gaskets. I guess that leaves me with three questions. First, do you have any pictures of the pistons, alone or installed? Second, which cam are you running and did anyone check the piston to valve clearance? Third, I'm thinking the 3194's are heavier than stock, so was the balance checked?
 
 
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